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20110808 readnatpmpresponse bug

 
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zhuyie



Joined: 25 Jan 2012
Posts: 1

PostPosted: Wed Jan 25, 2012 3:31 am    Post subject: 20110808 readnatpmpresponse bug Reply with quote

VC2008 on Windows 7.

in natpmp.c line 197, after called recvfrom(...), i found errno==0 when @ERR==10035(WSAEWOULDBLOCK or EWOULDBLOCK), so the following switch/case will not working correctly. Is it a bug?

n = recvfrom(p->s, buf, sizeof(buf), 0,
(struct sockaddr *)&addr, &addrlen);
if(n<0)
switch(errno) {
/*case EAGAIN:*/
case EWOULDBLOCK:
n = NATPMP_TRYAGAIN;
break;
case ECONNREFUSED:
n = NATPMP_ERR_NOGATEWAYSUPPORT;
break;
default:
n = NATPMP_ERR_RECVFROM;
}
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miniupnp
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Joined: 14 Apr 2007
Posts: 1589

PostPosted: Wed Jan 25, 2012 3:58 pm    Post subject: Re: 20110808 readnatpmpresponse bug Reply with quote

zhuyie wrote:
VC2008 on Windows 7.

in natpmp.c line 197, after called recvfrom(...), i found errno==0 when @ERR==10035(WSAEWOULDBLOCK or EWOULDBLOCK), so the following switch/case will not working correctly. Is it a bug?

n = recvfrom(p->s, buf, sizeof(buf), 0,
(struct sockaddr *)&addr, &addrlen);
if(n<0)
switch(errno) {
/*case EAGAIN:*/
case EWOULDBLOCK:
n = NATPMP_TRYAGAIN;
break;
case ECONNREFUSED:
n = NATPMP_ERR_NOGATEWAYSUPPORT;
break;
default:
n = NATPMP_ERR_RECVFROM;
}


Under Window the code should be different and use WSAGetLastError() instead of errno.
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